any proof link to 15k A3 sold by Bitmain?
a lot of assumptions here on sold amount, but not a single has a trustable source...
Proof? That's easy. The Bitcoin Cash address they used to receive the payments for the A3's.
Check it out here:
https://bch.btc.com/1NrMNvxsDwsQ9DA4styegmTue9tPPsV9bgThe balance is ~19,126 BCH. Which is about 12~15k A3's sold